API Gateway with Auth, Routing & Resilience

Why this project

Gateway is the front door of microservices. Shows cross-cutting concerns and resilience patterns.

Tech stack

Skills demonstrated

• API Gateway patterns
• Circuit breaker
• Centralized auth
• Request routing

Interview talking points

• Gateway vs service mesh
• Where JWT validation happens
• Circuit breaker settings tuning
• Handling gateway as single point of failure

Problem statement

Central gateway routing to downstream microservices. JWT validation, request logging, rate limiting, circuit breaker, and request/response transformation.